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Statements

Subject Item
n2:RIV%2F25877950%3A_____%2F12%3A%230000051%21RIV14-MPO-25877950
rdf:type
n5:Vysledek skos:Concept
dcterms:description
Heavy forging ingots are used in metallurgy engineering e.g. for the production crankshafts for marine engines, production of special parts for conventional, hydro and power engineering, rotor shafts, steam generators, heat exchangers and collectors for both conventional and nuclear power engineering. A production of heavy forging ingots is usually accompanied by a segregation of elements in the structure of steel. The segregation of the elements causes anisotropy of mechanical properties. But these mechanical parts must meet the strictest criteria, and therefore must be practically free of defects. In order to achieve the best possible quality of heavy forging ingots, the project focused on improving the useful properties of special machine parts in VÍTKOVICE HEAVY MACHINERY a.s. together in cooperation of Technical University of Ostrava was started. The experimental ingot 8K91SF weighing almost 90 tons was cast due the performance a detailed analysis of the current state of casting and solidification. The ingot was cut and macrostructure and chemical heterogeneity of the ingot was evaluated in detail. This article describes performance of the experimental ingot casting, the way of cutting, the methodology of chemical analysis and the results of that investigation. The gained knowledge is also used to specification of the setting of boundary conditions of the numerical simulations, which should help to optimize the production technology of casting heavy forging ingots and minimize the range of segregation in ingots. Heavy forging ingots are used in metallurgy engineering e.g. for the production crankshafts for marine engines, production of special parts for conventional, hydro and power engineering, rotor shafts, steam generators, heat exchangers and collectors for both conventional and nuclear power engineering. A production of heavy forging ingots is usually accompanied by a segregation of elements in the structure of steel. The segregation of the elements causes anisotropy of mechanical properties. But these mechanical parts must meet the strictest criteria, and therefore must be practically free of defects. In order to achieve the best possible quality of heavy forging ingots, the project focused on improving the useful properties of special machine parts in VÍTKOVICE HEAVY MACHINERY a.s. together in cooperation of Technical University of Ostrava was started. The experimental ingot 8K91SF weighing almost 90 tons was cast due the performance a detailed analysis of the current state of casting and solidification. The ingot was cut and macrostructure and chemical heterogeneity of the ingot was evaluated in detail. This article describes performance of the experimental ingot casting, the way of cutting, the methodology of chemical analysis and the results of that investigation. The gained knowledge is also used to specification of the setting of boundary conditions of the numerical simulations, which should help to optimize the production technology of casting heavy forging ingots and minimize the range of segregation in ingots.
dcterms:title
Evaluation of Chemical Heterogenity of a 90-ton Forging Ingot Evaluation of Chemical Heterogenity of a 90-ton Forging Ingot
skos:prefLabel
Evaluation of Chemical Heterogenity of a 90-ton Forging Ingot Evaluation of Chemical Heterogenity of a 90-ton Forging Ingot
skos:notation
RIV/25877950:_____/12:#0000051!RIV14-MPO-25877950
n5:predkladatel
n6:ico%3A25877950
n3:aktivita
n20:P
n3:aktivity
P(FR-TI3/243)
n3:dodaniDat
n11:2014
n3:domaciTvurceVysledku
n8:2559315 n8:8440522 n8:3567311 n8:2728478
n3:druhVysledku
n19:D
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
135070
n3:idVysledku
RIV/25877950:_____/12:#0000051
n3:jazykVysledku
n18:eng
n3:klicovaSlova
heavy steel ingot; macro-segregation; chemical heterogenity
n3:klicoveSlovo
n4:macro-segregation n4:heavy%20steel%20ingot n4:chemical%20heterogenity
n3:kontrolniKodProRIV
[B5EF3218F7E2]
n3:mistoKonaniAkce
Brno
n3:mistoVydani
Ostrava
n3:nazevZdroje
METAL 2012, 21st International Conference on Metallurgy and Materials, Conference proceedings
n3:obor
n7:JG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
8
n3:projekt
n14:FR-TI3%2F243
n3:rokUplatneniVysledku
n11:2012
n3:tvurceVysledku
Opler, Aleš Zaoral, Jakub Machovčák, Pavel Carbol, Zdeněk Trefil, Antonín Tkadlečková, Markéta Michalek, Karel Merta, Karel
n3:typAkce
n12:WRD
n3:zahajeniAkce
2012-05-23+02:00
s:numberOfPages
6
n10:hasPublisher
TANGER spol. s r.o.
n13:isbn
978-80-87294-31-4